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政大典藏 > College of Science > Graduate Institute of Applied Physics > Periodical Articles > Item 140.119/64468

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Title:	Nb lateral Josephson junctions induced by a NiFe cross strip
Authors:	Lin, L. K.;Huang, S. Y.;Huang, J. H.;Lee, S. F. 李尚凡
Contributors:	應物所
Date:	2012.12
Issue Date:	2014-03-05 17:53:17 (UTC+8)
Abstract:	We fabricated lateral junctions by crossing superconductingNb strips in metallic contact with a ferromagnetic NiFe strip. Transport measurements on the Nb lateral junctions exhibit modulations of the critical current with a varying perpendicular magnetic field similar to a Fraunhofer interference pattern, which demonstrates the dc Josephson effect. The modulations of the critical current could be attributed to an effective weak link embedded in the Nb strip and formed a Josephson junction. Appearance of Shapiro steps on the current-voltage curves of these junctions when microwaves irradiation is applied proves the ac Josephson effect. The underlying physics of the effective weak link induced by the NiFe strip is discussed.
Relation:	Applied Physics Letters, 101(24), 242601
Source URI:	http://dx.doi.org/10.1063/1.4770302
Data Type:	article
Appears in Collections:	[Graduate Institute of Applied Physics] Periodical Articles

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File	Description	Size	Format
242601.pdf		1521Kb	Adobe PDF2	1414	View/Open

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